Catalytic Steam Reforming of Methane: New Data on the Contribution of Homogeneous Radical Reactions in the Gas Phase: II. A Ruthenium Catalyst
Kinetics and Catalysis
, E-ISSN: 1608-3210
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 Russia
The kinetics of methane steam reforming and pyrolysis on Ru/Al2O3(T= 650–750°C, PCH4PCH4 = 0.001–0.030 MPa) is studied. The values of the rates and activation energies are compared with the kinetic parameters for nickel catalysts. It was shown that steam reforming can occur on the ruthenium catalyst both heterogeneously and heterogeneously–homogeneously depending on the reaction conditions. Comparative activities of the Ru/Al2O3and Ni–Al2O3catalysts are discussed under the conditions of purely heterogeneous and heterogeneous–homogeneous steam reforming.